Manipulation of phosphene thresholds by transcranial direct current stimulation in man.

Manipulation of phosphene thresholds by transcranial direct current stimulation in man. Research Abstract Details 

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Manipulation of phosphene thresholds by transcranial direct current stimulation in man. Abstract Text:

Andrea Antal,Tamás Z Kincses,Michael A Nitsche,Walter Paulus,

Transcranial direct current stimulation (tDCS) can modulate the excitability of the human motor cortex, as revealed by the amplitude of the motor-evoked potentials (MEP). The aim of our study has been to produce localized changes of cerebral excitability of the visual cortex in the intact human by weak anodal and cathodal stimulation. For quantification of current-induced excitability changes, we measured phosphene threshold (PT) using short trains of 5-Hz transcranial magnetic stimulation (TMS) pulses in nine healthy subjects before, immediately after, 10 min, and 20 min after the end of tDCS. PTs are suggested as representative values of visual cortex excitability changes. Reduced PT was detected immediately and 10 min after the end of anodal stimulation, while cathodal stimulation resulted in an opposite effect. Our results show that tDCS elicits a transient, reversible excitability alteration of the visual cortex, thus representing a promising tool for neuroplasticity research.

Manipulation of phosphene thresholds by transcranial direct current stimulation in man. Publishing Authors By Initials

A Antal,TZ Kincses,MA Nitsche,W Paulus,

For similar nervous system: central nervous system: brain: prosencephalon: telencephalon: cerebrum: cerebral cortex: occipital lobe: visual cortex research abstracts see: nervous system: central nervous system: brain: prosencephalon: telencephalon: cerebrum: cerebral cortex: occipital lobe: visual cortex research

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Manipulation of phosphene thresholds by transcranial direct current stimulation in man. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 150

Page Numbers: 375-8

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ISSN: 0014-4819

DAY: 16

MONTH: 04

YEAR: 2003

Manipulation of phosphene thresholds by transcranial direct current stimulation in man. Information

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LANGUAGE: eng

NlmUniqueID: 43312

Manipulation of phosphene thresholds by transcranial direct current stimulation in man. Keywords Mesh Terms:

KEYWORDS: Visual Cortex

MESH TERMS: physiology

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Grant and Affiliation Information for Manipulation of phosphene thresholds by transcranial direct current stimulation in man.

AFFILIATION: Department of Clinical Neurophysiology, Georg-August University of Göttingen, Robert Koch Strasse 40, 37070 Göttingen, Germany. Aantal@gwdg.de

Country: Germany

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MEDLINETA: Exp Brain Res

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